Improvement in friction-eollebs



A @uiten tetrs-etwt @fitta CHARLES W. PIERCE 0F l I'I-.|'B .Al\lY-,- NEW YORK- Lctters Patent No. 73,117, dated January 7, 1868.

IMPROVEMENT IN I'RICTION-ROILERS.

TO ALL WHOM IT MAY CONCERN:

p Be it knoivn that I, CHARLES W.- PIERCE, of Albany, in the county of Albany, and in the State of New York, have invented certain new and useful Improvements in Friction-Rollers; and do hereby declare that the following isa full, clear,'and exact description thereof, reference being had 'to tl tothe letters of reference marked thereon. I Y

In the annexed drawings, making part of this-specification, A A represent two metallic collars, which slip over a shait or axle, B. These collars halve recesses o'rslots formed in one edge, so that whenthey are.4 placed with their slotted edges or ends together, as is represented in, the figure, a scries'o' openings is formedl in which toV place a. series of'rollers, D D, The rollers D'are'metallic friction-rollergnnd have at their ends the 1e accompanying drawings, and

small journals e e, which rest in suitable bearings in the-collars A A. Theirollers are made thick enough or large enough in diameter' to extend beyond the surfaces of thecollars, both internally and externally, so that they will bear not only upon the shaft or axle B, but, when placed in a box, will also bear upon it, the collarsI A being silspended'between the axle and the box. The collars A ser-ve to hold the rollers in place, keeping them separated. These'collars are held together by means of pins C C, which pass through the nxle, or by any other suitable'means. y

It is necessary alwayswith this devi-ice to have a suitable box to surround the rollers and the collars.

Having thus fullydescribed my invention, what I laim as new, and desire to secure by Letters Patent, s-

The collars A A, madcin two parts, and provided with slots or openings, in which the rollers D D are held,

as and for the purpose set forth. g

In testimony that I claimthe foregoing, Ihare hercuutoset my hand, this 29th day of November, 1867.

` CHARLES W. PIERCE.

Witnesses:

vROBERT H. WELLS,

WM. S. WELLS. 

